Dump-bottom extractor



June 1927' "E. J. CARROLL .DUIP BOTTOK EXTRACTOR Filed Nov. 22. 1924 4 f INVENTOR by MJM I, *6 M )ILM ATTORNEYS Patented June 28, 1927.

UNITED STATES 1,633,510 PATENT OFFICE."

EMIL J. CARROLL, OF NORWOOD, OHIO, ASSIGNOR TO THE AMERICAN LAUNDRY HA- GHINEEY COMPANY, OF CINCINNATI, OHIO, CORPORATION 01' OHIO.

DUMP-BOTTOM nx'rnac'r'on- Application filed-November 22, 1924. Serial 110,751,559.

lating the closure for said bottom discharge opening.

Further objects of the invention are in part obvious and in part will appear more in detail hereinafter.

In the drawing, Fig. 1 is a vertical sectional view of an extractor embodying my invention; Fig. -2 is a cross sectional view on the line 2-2, Fi 1;. Fig. 3 is an enlarged detail view 0 the closure traveling nut; Fig. 4 is a detail cross sectional view thereof on the line, 4-4, Fig. 3; Fig. 5 is a detail front elevation of the closure manipul'ating'means; Fig. 6 is a'yertical sectional view thereof on the line 6-6, Fi 5; and Fig. 7 is a diagrammatic view i us tratin the electric circuits.

While the present invention may be read-- spherical head 4 disposed within a semispherical socket carried by a bracket 5.

. This bracket is attached to a suitable frame 6. having a base 7 resting upon the floor or other support 8. I v

The work containing basket 3 is carried by a shaft or spindle 9 provided at its upper end with a ball member 10 arranged within a suitably formed socket portion 11 of the curb frame 2. The lower end of the spindle is supported within a' tubular bearing member 12 carried by. the curb 1. The extractor is driven by an electric motor 13 suitably mounted upon the basket spindle 9 which forms the armature of the motor. v Coming now to the distinguishing features of the present invention, the curb 1 is provided with a centrally disposed bottom discharge opening 15 across which extend rad ally extending webs 16 which connect the curb bottom with the lower spindle bear-- ing 12. The inner foraminous basket 3 is provided with a similar bottom discharge opening 17, across which extend radial y extendmg' ribs 18 which connect the basket bottom with the central hub ortion 19, the lower portion of which hu encloses the upper portion of the lower spindle bearing'member 12.

The basket discharge opening 17 is closed during the extracting operation by a.sub-

stantially conical shaped closure member 20. The upper cylindrical end portion of this closure member is pivotally securedto a pair of diametrically opposed shoes 21 rotatably confined in an annular groove 22 of a nut 23 mounted upon the basket spindle. Said closure member, therefore, not only has lateral swinging movement relative to the shoes 21 but the entire closure member is rotatable relative to the nut 23.

Nut 23 has screw threaded engagement with the intermediate rtion 24 of the basket spindle 9, and w en held from rota-ting' with said spindle, as will later appear, will move upwardly or downwardly therealong de'pendin upon the direction of rotation of the spin le. Preferably, nut 23 is ,in two arts ,to facilitate its application to the has et spindle, the two parts being bolted orotherwise suitabl secured together. To prevent rotation of t e nut, the upper surface thereof is here, provided with one or more laterally extending grooves 25, four being hereshown. (loo crating with these grooves is the inner en portion of an arm 26 havin its rear end pivotally secured to a bracket 2 carried by t e curb frame 2, said bracketbein provided with a side guiding portion 28 or said arm. -Mounted in the upper and lower portions of said bracket at the extremities of the range of movement of.

and adaptedto engage said arm and force it from. seating engagement in one of the grooves when the nut 23 has reached its lowermost position, at which point the basket disclfarge ,openin 17 is entirel covered by the conical shapet i closure mem or 20.

The operation of the machineds as fol--.-- lows: Let us assume that the washmg'or.

cleaning fluid has been removed from the materials in basket 3 and that the rotatlon ofthe basket has stopped. The operator eration brings the closure member 20 to its upper uncovering position, and in order to more conveniently discharge the extracted materials through the bottom dlscharg'e openings 17 and 15,-the closure member may be swung to one side, as shown in dot and dash lines, Fig. 1, and suitably flatched or held in this positlon during the'unloading operation. The extracted materials are dropped or dumped onto a suitable conveyor or into a suitable chute arranged below said openings, and carried by conve or or said chute to any desired location. en the machine has been thus unloaded, the opera'tor manipulates switch 33. so as to close the forward contacts 34, thereby effecting forward rotation of the basket spindle. Nut 23 thereupon travels downwardly until arm 26 engages spring 32, which knocks said am from seating engagement in one of the nut grooves 25. Said nut, I therefore,1comes to rest upon theto of the central hub rtion 19of the basket, in which position t e basket discharge opening is entirely covered by the closure member 20. Switch 33 is'then manipulated toopen contacts 34 and stop the rotation of the spindle. I

Referring to the electrical diagram, Fig. 7,

-'the arm 40 of rheostat 41 ism engagement with contact'42 during the extracting opera tion, current passing from line L through switch 33 to contacts 34, line 43, arm 40, contact 42, 1ine44, motor 13, line 45 and switch 33 to line L The field circuit is from L switch 33, contacts'34,.line 43, line 46, magnet coil 47, line 48', limit switch 30,

line 49, field 50, and through, line 51 to L.

When the extracting operation has been completed andfit is desired to raise closure 20 to expose the discharge openings, the basket spindle is started rotatingin the reverse basket direction. The circuit is now' from L through switch 33, contacts 35, line 52, line 53, upper limit switch '29, line 54, coil 55 of the double .pole magnetic contactor, line 56, line 49, field 50 and line 51 to L Current now flows from L switch 33, line 52, con tact 57, line 58, line 45, motor 13, line 44, resistance of rheostat 41, line 59, contact 60, line 61, contacts 35, switch 33 to L When the closure member 20 has been raised to its uppermost position, arm 26 strikes and opens the upper limit switch 29, opening the field circuit, de-energizing coil 55, opening the motor circuit and stopping the rotation of the basket spindle.

When the materials have been discharged from the basket, the operator manipulates switch 33 to close contacts 34. Rheostat arm 40.-is moved into contact with contact 62, so that current flows from L, switch 33, contacts 34,- line 43, arm 40, contact 62, the resistance of rheostat 41, line 44, motor 13, line 45 to contacts 34, switch 33 and to L It will of course, be understood that magnet coil 47 is adapted to hold rheostat arm 34in position on any of the rheostat con- .tacts during the forward rotation of the basket spindle. When this coil is de-energized, arm 40 is automatically moved out of contact with said rheostat contacts so as to break the motor circuit. The resistance of the rheo-' stat is used for the purpose of running the motor atlow speed during the-raising and lowering of the closure member 20.

What I claim is:

extractor, com rising a work receiving basket rotatable in both forward and reverse directions and provided .with a discharge opening,arotatable closure for said basket opening movable to and from the same to respectively cover and expose said' opening, means. for preventing rotary movement of said closure. so that rotation of said provides relative rotary movement therebetween and means for produciii movement of said closure to or from said basket opening during such relative rotary movement of said closure and said basket,

.the parts being soconstructed and arranged that-forward rotation of said basket tends to move "said closure toward said basket opening and reverse rotation of said basket tends to'move said basket opening.

. 2. An extractor, comprising a work receiving basket rotatable in both forward and reverse directions 'and provided with a discharge opening, a rotatable closure for said basket opening movable to and from the same to respectively cover 'and'expose said, opening, means for preventing rotarymovment 0 said closure so that rotation of said basket provides relative rotary movement therebetwecn, means for producin movement of said closure to or from s'ai basket closure away from said opening during such relative rotary movement of said closure and said basket, the arts being so constructed and arranged that orward rotation of said basket tends to move said closure toward said basket open- .ing and reverse rotation of said basket tends to move said closure away from said basket ment of said closure to or fromsaid basket.

, relative to said basket opening.

opening during Such relative rotary move-' ment of said closure and said basket, the parts being so constructed and arranged that forward rotation of said basket tends to move said closure toward said basket opening and reverse rotation of said basket tends to move said closure away from'said basket opening, and means for stopping the forward rotation of said basket when said closure has moved to proper covering position 4. An extractor, comprisin a work'receiving basket rotatable 'm bot forward andreversezdirections and provided with a discharge opening, a rotatable closure for said basket opening movable to and from the same to respectively cover and expose said opening, means for preventing rotary movement-of said closure sothat rotation of said a parts being so constructed and arranged that forward rotation of said basket tends to v basket provides relative rotar'y movement therebetween, means for producin --movement of said closure to or from sai basket opening during such relative rotary movement of said closure and'said basket, the

move said closure toward said basket opening and reverse rotation of said basket tends to move said closure away from said basket opening, and means for stopping the rota t1on of said basket when said closure has moved a predetermined distance from said 'basket opening and when? said closure has roper covering position relative moved to to said has t opening. I

5. An extractor, comprising ';a work receiving basket rotatable 111 both forward and reverse directions and provided with a discharge opening, a rotatable closure forsaid basket opening movable to and from the same to respectively .eover and expose said openin means for preventing rotary movement o said closure so that rotation of said opening during such relative rot work receivin basket provides relative rotary movement therebetween, means for producin movement of said closure to or from sai movement of said closure and said has et, the

parts being so constructed and arranged that.

forward rotation of said basket tends to move said closure toward said basket openbasket ing and reverse rotation of said basket tends to move said closure away from said basket opening, and adjustable means for limiting the movement of said closure to and from said basket opening.

6. An extractor, comprising a work re ceiving basket having a discharge opening, a closure for said opening having both rotary and vertical movements, means for preventing rotary movement of said closure,

and means for rendering ineffective {said rotary movement preventing means.

7. An extractor, comprising a work re-' ceiving basket, having a discharge openin p a closure for said opening having bot rotary and vertlcal movements, means for preventlngrotary movement of said closure,

tive said rotary movement preventing means.

and yielding means for rendering inefi'ec- 8. An extractor, comprising a work re--v ceiving basket having a discharge opening, 1 a closure for said opening having both 9 rotary and"verticalrmove ment s, means for preventing rotary movement of said closure,

and a s ring arranged in the path of move:

ment o said rotary movement preventing means for rendering said means meffectiva- 9. An *extractor, comprising a frame, a

basket mounted therein'and having a disc arge opening, a spin- .dle for said basket, a closure forsald discharge opening having both rotary and vertical movements, and means carried by said frame .for preventing rotary movement gof said closure.- I I a ll xtractor, comprisin work receivi basket moun therein and having a'disc arge opening, a driving spin-- a frame, a

dle for-said baskets. closure for said .dis-

charge openinghavmg both rotary and vertical movements, and' an arm carried b said frame and adapted to engage said vel osure .for preventing rotary movement thereof.

11. An extractor comprisin a frame, a

work receivin basket moun thereinand having a disc arge opening, a .drivin'g spin dle for said basket, a closure for said dis:

charge opening having both rotary and vet tical movements, and an 'arm pivotally mounted upon said frame and adapted to w engage a recess in said closure for preventing rotary movement thereof.

12. An extractor comprisin a. frame, a work receiving basket moun having a disc ar' dle for said b 1 et a closure for sald'dlscharge opening having both rotary and-verthan and opening','a spintical movements, an arm pivotally mounted upon said frame and adapted to engage a recess in said closure for preventing rotary movement thereof, and means for forcing said arm from engagement in said recess.

13. An extractor, comprising a frame, a Work receiving basket mounted therein and having a ischarge opening, a driving spindie for said basket, a closure for said discharge opening having both rotary and vertical movements, an arm pivotally mountedupon said frame and adapted to engage a upon said frame and adapted to engage a recess in said closure for preventing rotary movement thereof, and a spring for yieldinglg forcing said arm ,from engagement in.

said recess.

15. An extractor, comprising a work receiving basket having a discharge opening, a closure for said opening having both rotary and vertical movements, means for preventing rotary movement of said closure, and means for rendering ineifective said rotary movement preventing means when said closure has reached oneof the ends of its range of vertical movement.

16. An extractor, com rising a work receiving basket having a ischarge opening, a

closure for said opening having both rotary and vertical movements, means for preventmg rotary movement of said closure, and means for rendering meffective said rotary movement preventing means when said closure is in closing position relativeft'o said basket discharge opening. I

17. An extractor, comprising a work receiving basket havi g a discharge opening, a closure for said asket opening adapted for raising and lowering movement to respectively expose and cover said basket openmg, motor means for rotating said basket,

and-means for-stopping the rotation of said basket when said closure has reached its uppermost or its lowermost position.

18. An extractor, comprising a work receiving basket having a. discharge opening, a closure for said basket opening adapted for raising and lowering movement to respec-' tively expose and cover said basket opening motor 'means for rotating said basket, and means for stopping said motor means when said closure has reached its uppermost or its lowermost position. In testimony whereof I hereby aflix-my signature.

EMIL J. CARROLL. 

